CN106658752A - Communication resource confirmation method, device and system - Google Patents
Communication resource confirmation method, device and system Download PDFInfo
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- CN106658752A CN106658752A CN201510734020.6A CN201510734020A CN106658752A CN 106658752 A CN106658752 A CN 106658752A CN 201510734020 A CN201510734020 A CN 201510734020A CN 106658752 A CN106658752 A CN 106658752A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
The invention discloses a communication resource confirmation method. The method comprises the steps that a calling UE receives first information transmitted by a network side; the first information carriers a session description protocol SDP offer; and when the current calling communication resource state is confirmed to be the first state, second information carrying a SDP answer is transmitted to the network side so that the network side is enabled to generate third information carrying the SDP answer according to the second information and transmit the third information to a called UE, wherein the SDP answer is used for indicating the called UE to directly perform ringing operation. The invention also discloses a communication resource confirmation device and system.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of communication resource confirmation method, apparatus and system.
Background technology
With developing rapidly for Long Term Evolution (LTE, Long Term Evolution) network, many operators
Using VoLTE (Voice over LTE) as its voice solution.VoLTE is based on IP multimedias
The speech business of subsystem (IMS, IP Multimedia Subsystem), is a kind of IP data transmission technologies,
Whole service bearers are capable of achieving data and unification of the speech business under consolidated network on 4G networks.
In user's nonreply forward pass flow process of existing VoLTE speech businesses, contain and point-to-point flow process
Middle identical calling subscriber equipment (UE, User Equipment) communication resource and called UE between confirms
Process, the process is to send new UPDATE new informations by calling UE to carry out resource confirmation,
Called UE replys 200ok message after the UPDATE message for receiving calling UE, then enters line ringing behaviour
Make；If however, before calling UE sends the UPDATE message, calling communication resource has been reserved successfully,
Still need to perform above-mentioned communication resource determination process, can so extend calling and connect time delay, increase network side and end
The signaling consumption of side.
The content of the invention
In view of this, the embodiment of the present invention is expected to provide a kind of communication resource confirmation method, apparatus and system,
Calling can be reduced to connect time delay, reduce the signaling consumption of network side and end side, strengthen Consumer's Experience.
To reach above-mentioned purpose, what the technical scheme of the embodiment of the present invention was realized in：
A kind of communication resource confirmation method is embodiments provided, methods described includes：
Calling UE receives the first information that network side sends；The first information carries Session Description Protocol
(SDP, Session description protocol) offer；
It is determined that when current calling communication resource status are first state, sending the second letter for carrying SDP answer
Cease to network side, so that network side generates the 3rd information for carrying SDP answer according to second information,
And the 3rd information is sent to called UE；The SDP answer are used to indicate that the called UE is direct
Carry out ringing operations.
In such scheme, the first state has been reserved successfully for characterizing the calling communication resource；
Accordingly, it is described to determine that current calling communication resource status include for first state：
The calling UE with the network-side communication by determining current calling communication resource reservation success.
In such scheme, the SDP answer carry caller resource status parameter；The caller resource status
Parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations.
In such scheme, indicate that caller is led to by the way that the state of the resource status parameter is set to into sendrecv
Letter resource status are first state.
The embodiment of the present invention additionally provides a kind of communication resource confirmation method, and methods described includes：
Network side sends the first information to calling UE；The first information carries SDP offer；
Receive calling UE carrying SDP for sending when it is determined that calling communication resource status are first state
Second information of answer, the 3rd information for carrying SDP answer is generated according to second information, concurrently
The 3rd information is sent to called UE；The SDP answer are used to indicate that the called UE is directly carried out
Ringing operations.
In such scheme, before the network side sends the first information to calling UE, methods described also includes：
Network side receives the 4th information that the called UE sends, and generates according to the 4th information described
The first information；4th information carries the SDP offer.
In such scheme, the SDP answer carry caller resource status parameter；The caller resource status
Parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations.
In such scheme, indicate that caller is led to by the way that the state of the resource status parameter is set to into sendrecv
Letter resource status are first state；The first state has been reserved successfully for characterizing the calling communication resource.
The embodiment of the present invention additionally provides a kind of communication resource confirmation method, and methods described includes：
Called UE receives the 3rd information of the carrying SDP answer that network side sends；3rd information is
Network side carrying SDP for sending when it is determined that calling communication resource status are first state according to calling UE
What second information of answer was generated；
Ringing operations are directly carried out according to the 3rd information.
In such scheme, the SDP answer carry caller resource status parameter；The caller resource status
Parameter is used to indicate the current state of calling communication resource；
Accordingly, it is described directly to carry out ringing operations according to the 3rd information and include：
The instruction calling communication resource status that called UE is carried according to the SDP answer in the 3rd information
Resource status parameter for first state directly carries out ringing operations.
In such scheme, indicate that caller is led to by the way that the state of the resource status parameter is set to into sendrecv
Letter resource status are first state；The first state has been reserved successfully for characterizing the calling communication resource.
The embodiment of the present invention additionally provides a kind of communication resource and confirms device, and described device is located at calling UE, institute
Stating device includes：First receiver module and the first sending module；Wherein,
First receiver module, for receiving the first information of network side transmission；The first information is carried
SDP offer；
First sending module, for determine current calling communication resource status be first state when, send
Second information of SDP answer is carried to network side, so as to network side is generated according to second information carry
3rd information of SDP answer, and the 3rd information is sent to called UE；The SDP answer are used
Ringing operations are directly carried out in the instruction called UE.
In such scheme, the first state has been reserved successfully for characterizing the calling communication resource；
Accordingly, first sending module, specifically for current main by determining with the network-side communication
Cry communication resource reservation success.
In such scheme, the SDP answer carry caller resource status parameter；The caller resource status
Parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations.
The embodiment of the present invention additionally provides a kind of communication resource and confirms device, and described device is located at network side, institute
Stating device includes：Second receiver module and the second sending module；Wherein,
Second sending module, for sending the first information to calling UE；The first information carries SDP
offer；
Second receiver module, for receiving the calling UE it is determined that calling communication resource status are the
Second information of the carrying SDP answer sent during one state, generates according to second information and carries SDP
3rd information of answer, and the 3rd information is sent to called UE；The SDP answer are used to refer to
Show that the called UE directly carries out ringing operations.
In such scheme, second receiver module is additionally operable to receive the 4th letter that the called UE sends
Breath, and generate the first information according to the 4th information；4th information carries the SDP offer.
In such scheme, the SDP answer carry caller resource status parameter；The caller resource status
Parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations.
The embodiment of the present invention additionally provides a kind of communication resource and confirms device, and described device is located at called UE, institute
Stating device includes：3rd receiver module and processing module；Wherein,
3rd receiver module, for receiving the 3rd information of the carrying SDP answer of network side transmission；
3rd information is that network side is sent out according to calling UE when it is determined that calling communication resource status are first state
What second information of the carrying SDP answer for sending was generated；
The processing module, for directly carrying out ringing operations according to the 3rd information.
In such scheme, the SDP answer carry caller resource status parameter；The caller resource status
Parameter is used to indicate the current state of calling communication resource；
Accordingly, the processing module, specifically for carrying according to the SDP answer in the 3rd information
Indicate that calling communication resource status directly carry out ringing operations for the resource status parameter of first state.
In such scheme, indicate that caller is led to by the way that the state of the resource status parameter is set to into sendrecv
Letter resource status are first state；The first state has been reserved successfully for characterizing the calling communication resource.
The embodiment of the present invention additionally provides a kind of communication resource and confirms system, and the system includes：Calling UE,
Network side and called UE；Wherein,
The network side, for sending the first information to calling UE；The first information carries SDP offer；
The calling UE, for receiving the first information, it is determined that current calling communication resource status are first
During state, the second information for carrying SDP answer is sent to network side；The SDP answer are used to refer to
Show that the called UE directly carries out ringing operations；
The network side, is additionally operable to be generated according to second information the 3rd information for carrying SDP answer,
And the 3rd information is sent to called UE；
The called UE, for directly carrying out ringing operations according to the SDP answer in the 3rd information.
Communication resource confirmation method, apparatus and system that the embodiment of the present invention is provided, calling UE receives net
The first information that network side sends；The first information carries Session Description Protocol SDP offer；It is determined that current main
When to be communication resource status be first state, the second information for carrying SDP answer is sent to network side, with
Network side is generated according to second information and carry the 3rd information of SDP answer, and send the described 3rd
Information is to called UE；The SDP answer are used to indicate that the called UE directly carries out ringing operations.
Thus, called UE can directly carry out ringing operations according to the SDP answer in the 3rd information, without the need for
Wait again calling UE send for resource confirm UPDATE message, reduce calling connect time delay,
The signaling consumption of network side and end side is reduced, Consumer's Experience is enhanced.
Description of the drawings
Fig. 1 is the point to point call flow process sequential chart of VoLTE speech businesses；
Fig. 2 is the nonreply forward pass flow process sequential chart of VoLTE speech businesses；
Fig. 3 is the communication resource confirmation method schematic flow sheet of the embodiment of the present invention one；
Fig. 4 is the communication resource confirmation method schematic flow sheet of the embodiment of the present invention two；
Fig. 5 is embodiment of the present invention resource confirmation method sequential chart；
Fig. 6 is that the communication resource of the embodiment of the present invention one confirms device composition structural representation；
Fig. 7 is that the communication resource of the embodiment of the present invention two confirms device composition structural representation；
Fig. 8 is that the communication resource of the embodiment of the present invention three confirms device composition structural representation；
Fig. 9 is that the embodiment of the present invention communication resource confirms system composition structural representation.
Specific embodiment
Fig. 1 show the point to point call schematic flow sheet of VoLTE speech businesses, as shown in figure 1, described
Point to point call flow process includes：
Step 1：The call request of calling subscribe UE (O) is sent to caller session control (SBC, Session
Border Controller)；Precondition relevant parameters, wherein Calling Side and called are included in call request
Side is none.
Step 2：Caller SBC is to strategy and charging control (PCC, Policy and Charging Control)
Application call resource (interim), while asking call subscriber positional information.
Step 3～4：Calling Side "Policy and Charging Rules Function unit (PCRF, Policy and Charging
Rules Function) to S/P-GW distributing policies.
Step 5：Calling Side PCRF to SBC returns AAA responses.
Step 6～8：The reserved wireless side resource of Calling Side, mobile management entity (MME, Mobility
Management Entity) caller location information (TAI+E-CGI) is carried in message 8.
Step 9～10：S/P-GW to PCRF returns caller location information.
Step 11～12：PCRF to SBC reports caller location information.
Step 13～16：Calling Side finishing service is triggered, caller application server (AS, Application Server)
Called number polishing is carried out, afterwards originating S-CSCF obtains called I-CSCF by inquiry ENUM/DNS
Address simultaneously sends call request to called I-CSCF.
Step 17～18：Called I-CSCF inquires about home signature user server (HSS, Home Subscriber
Server the S-CSCF of called subscriber's registration) is obtained.
Step 19：It is called to trigger to VoLTE AS, trigger after the completion of basic call and supplementary service triggering
SCCAS。
Step 20：SCCAS carries out called domain selection, and to HSS T-ADS information is inquired about.
Step 23：HSS to SCCAS returns T-ADS information, comprising IMS Voice over PS supported.
Step 24～26：Call request is forwarded to called UE.
Step 27：Called UE returns 183 and wherein includes called SDP information, in precondition parameters
Calling Side and callee side are none.
Step 28～34：Callee side application call resource.
Step 35～42：183 responses are forwarded to caller according to call path.
Step 44～50：Calling Side changes resource bid according to negotiation result.
Step 51～59：The UPDATE that calling UE is initiated to confirm for resource to callee side, it is therein
The local states of precondition parameter Calling Sides are sendrecv, and callee side is none.
Step 60～68：Called UE to caller returns 200OK, precondition parameters calling and called therein
It is sendrecv.
Step 69～71：Calling and called both sides complete call signalling flow, and both sides start call.
Step 72～74：Calling Side on-hook, UE to SBC send BYE message, afterwards message be forwarded to by
It is SBC and UE.
Step 75～81：Calling Side carries out resource release.
Step 82～88：Callee side carries out resource release.
Can be seen that to allow called end to learn that caller call resource is pre- by above-mentioned point to point call flow process
Retained work(, need calling terminal to send for resource confirm UPDATE message, that is, need execution step 51-68
Resource confirm process；
Fig. 2 show the nonreply forward pass schematic flow sheet of VoLTE speech businesses, as shown in Fig. 2 described
Nonreply forward pass flow process includes：
Step 1：Step 1-70 in Fig. 1 is performed, calling and called is carried out and is consulted ring.
Step 2-3：Called not answer, network side nonreply timer expiry, network sends cancel and disappears
Cease to called.
Step 4-5：Called reply 200ok message is to network.
Step 6：The termination that interacts that terminal carries out 487 with network is called.
Step 7-9：Network side sends 181 forward message to caller, informs that calling is forwarded.
Step 10～12：Network side sends the request invite message of sky SDP to called.
Step 13～15：183 message of called reply are to network, wherein SDP offer are carried, in SDP offer
Resource status are none in local resource parameter local and opposite end resource parameters remote of carrying.
Step 16～18：Network side sends update message to caller, wherein carrying SDP offer, SDP offer
Resource status are none in the local and remote of middle carrying.
Step 19～21：200ok is replied in caller, wherein carrying SDP answer, is carried in SDP offer
Resource status are none in local and remote.
Step 22-24：Network side sends PRACK and wherein carries SDP answer, SDP answer to called
Resource status are none in the local and remote of middle carrying.
Step 25-27：Called reply 200ok is to network side.
Step 28：Calling and called carry out resource and confirm the operation such as ring, that is, perform step 51-89 in Fig. 1.
Can significantly find out, in above-mentioned nonreply forward pass flow process, no matter calling UE is carrying out secondary money
Whether caller call resource is reserved successfully before source acknowledgement (step 28), is both needed to perform in above-mentioned steps 28
With in Fig. 1 step 51-68 identical resource confirm process, and if calling UE before SDP offer are received,
Caller call resource has been reserved successfully, is still performed above-mentioned resource and is confirmed process, then when can undoubtedly increase calling
Prolong, and increase the signaling consumption of network side and end side.
In embodiments of the present invention, calling UE receives the first information that network side sends；The first information
Carry Session Description Protocol SDP offer；It is determined that when current calling communication resource status are first state, sending
Second information of SDP answer is carried to network side, so as to network side is generated according to second information carry
3rd information of SDP answer, and the 3rd information is sent to called UE；The SDP answer are used
Ringing operations are directly carried out in the instruction called UE.
Embodiment one
Fig. 3 is the communication resource confirmation method schematic flow sheet of the embodiment of the present invention one, is applied to nonreply forward pass
During, as shown in figure 3, embodiment of the present invention communication resource confirmation method includes：
Step 301：Calling UE receives the first information that network side sends；
Here, the first information carries SDP offer；In one embodiment, the first information is
UPDATE request messages；
The UPDATE request messages are the call request response message life that network side sends according to called UE
Into；The called UE is that the UE being ported to is called described in nonreply forward pass flow process, in Fig. 2
UE(C)；The call request response message carries the SDP offer.
In one embodiment, before this step, methods described also includes：Network side receives the called UE
The 4th information for sending, and generate the first information according to the 4th information；4th information is carried
The SDP offer；
Here, the 4th information can be call request response message, i.e. 183 message.
Step 302：It is determined that when current calling communication resource status are first state, sending and carrying SDP answer
The second information to network side；
In one embodiment, the first state has been reserved successfully for characterizing the calling communication resource；
Accordingly, it is described to determine that current calling communication resource status include for first state：
The calling UE with the network-side communication by determining current calling communication resource reservation success；Tool
Body includes：Calling UE determines current calling communication resource reservation success by space interface signaling flow process；The master
Make the communication resource that words resource resource can be called with based on.
In one embodiment, second information is used for network side according to second information generation carrying SDP
3rd information of answer, and the 3rd information is sent to called UE；
Here, when the first information is UPDATE request messages, accordingly, second information is
UPDATE response messages, the 3rd information is the PRACK generated according to the UPDATE response messages
Confirm message.
In one embodiment, the SDP answer carry caller resource status parameter local；The caller money
Source state parameter is used to indicate the current state of calling communication resource；
Wherein, the state of calling communication resource includes first state and the second state；Second state is used for
Characterize the calling communication resource not reserving successfully；
Specifically, calling communication money is indicated by the way that the state of the resource status parameter is set to into sendrecv
Source state is first state；Calling communication is indicated by the way that the state of the resource status parameter is set to into none
Resource status are the second state.
In embodiments of the present invention, the SDP answer are used to indicate that the called UE directly enters line ringing
Operation, specifically, the SDP answer indicate that calling communication resource status are first state by carrying
Resource status parameter indicates that the called UE directly carries out ringing operations, i.e., by carrying instruction resource status
Parameter sendrecv indicates that the called UE directly carries out ringing operations；
Here, the called UE directly carries out ringing operations, that is, send 180ringing to calling UE.
In one embodiment, the first information is UPDATE request messages；
Calling UE determines that current calling communication resource status are not reserved successfully for the second state, i.e. caller resource
When, the UPDATE response messages for carrying SDP answer are sent to network side, in the SDP answer
Resource status parameter state is none, so that network side is corresponding according to UPDATE response messages generation
The PRACK message for carrying SDP answer issues called UE, and then called UE according to PRACK message
The none that middle SDP answer are carried learns that the communication resource of calling UE is not reserved successfully, then proceedes to
Treat the UPDATE message confirmed for resource that caller sends.
In embodiments of the present invention, called UE receives the 3rd letter of the carrying SDP answer that network side sends
Breath, parsing the 3rd information obtains the state of the caller resource status parameter carried in SDP answer and is
Sendrecv, determines that calling communication resource has been reserved successfully according to the sendrecv, and the called UE is carried out
Ringing operations.The process of resource confirmation is carried out thus, eliminating calling UE and sending new UPDATE message,
Call delay is reduced, and reduces the signaling consumption of network side and end side.
Embodiment two
Fig. 4 show the communication resource confirmation method schematic flow sheet of the embodiment of the present invention two, in present invention enforcement
In example, the first information is UPDATE request messages；Fig. 5 show embodiment of the present invention resource confirmation method
Sequential chart, during being applied to nonreply forward pass, as shown in Figure 4,5, the embodiment of the present invention communication resource is true
Verifying method includes：
Step 401：Network side sends UPDATE request messages to calling UE；
Before this step, methods described also includes：Network side receives the call request response that called UE sends
Message, i.e. 183 response messages, generate the UPDATE requests and disappear according to the call request response message
Breath；Specially AS generates the UPDATE request messages according to the call request response message, and leads to
Cross core net the UPDATE request messages to be sent to calling UE；The call request response message is taken
Band SDP offer, the UPDATE request messages also carry the SDP offer；
Here, the called UE sends operation before call request response message as shown in Figure 5.
Step 402：Calling UE receives the UPDATE request messages, judges current calling communication resource
Whether reserve successfully, if reserved successfully, execution step 403；Otherwise execution step 406；
Here, it is described to judge that current calling communication resource reservation successfully includes：
The calling UE judges whether current calling communication resource is reserved successfully by space interface signaling flow process；Institute
Stating calling communication resource can be called words resource resource with based on.
Step 403：Calling UE sends a UPDATE response messages to network side；
In embodiments of the present invention, a UPDATE response messages can be 200OK message；Such as
Shown in Fig. 5, Fig. 5 determines sequential chart during current caller call resource reservation success for calling UE；Institute
State UPDATE response messages and carry SDP answer, the SDP answer carry caller resource status ginseng
Number local；In embodiments of the present invention, the caller resource status parameter is used to indicate that calling communication resource is
No reserved success；
Specifically, in embodiments of the present invention, the resource status parameter of the SDP answer carryings is
sendrecv；The SDP answer indicate the master by the way that the state of the local is set to into sendrecv
The communication resource is made to have reserved successfully.
Step 404：Network side generates a corresponding PRACK according to a UPDATE response messages
Confirm message, and send a PRACK message to called UE；
Here, a PRACK message is carried and identical in a UPDATE response messages
SDP answer, i.e., a described PRACK message can also indicate that calling communication resource has been reserved successfully.
Step 405：The called UE directly carries out ringing operations according to a PRACK message；
In one embodiment, this step is specifically included：Called UE parses a PRACK message,
The state for obtaining the caller resource status parameter is sendrecv, determines that caller is led to according to the sendrecv
Letter resource has been reserved successfully, and the called UE carries out ringing operations, that is, send 180ringing message to master
It is UE.The process of resource confirmation is carried out thus, eliminating calling UE and sending new UPDATE message,
Call delay is reduced, and reduces the signaling consumption of network side and end side.
Step 406：Calling UE sends the 2nd UPDATE response messages to network side；
Here, the 2nd UPDATE response messages carry SDP of the resource status parameter for none
answer；Resource status parameter none that the SDP answer are carried, indicates current calling communication resource
Do not reserve successfully.
Step 407：Network side generates corresponding 2nd PRACK according to the 2nd UPDATE response messages
Confirm message, and send the 2nd PRACK message to called UE；
Here, the 2nd PRACK message carries SDP answer of the resource status parameter for none；Such as
This, after called UE receives the 2nd PRACK message and parses, obtains SDP answer carryings
Resource status parameter be none, it is known that current calling communication resource not reserve successfully, need to continue waiting for lead
It is the UPDATE message confirmed for resource that UE sends.
Embodiment three
Fig. 6 show the communication resource of the embodiment of the present invention one and confirms device composition structural representation；Described device
Positioned at calling UE；As shown in fig. 6, the embodiment of the present invention communication resource confirms that device composition includes：First connects
Receive the sending module 62 of module 61 and first；Wherein,
First receiver module 61, for receiving the first information of network side transmission；The first information is taken
Band SDP offer；
First sending module 62, for determine current calling communication resource status be first state when, send out
The second information for carrying SDP answer is sent to network side, so as to network side is generated according to second information take
The 3rd information with SDP answer, and the 3rd information is sent to called UE；The SDP answer
For indicating that the called UE directly carries out ringing operations.
In embodiments of the present invention, the first information is UPDATE request messages, accordingly, described the
Two information are UPDATE response messages, and the 3rd information is PRACK message.
In an inventive embodiments, the first state has been reserved successfully for characterizing the calling communication resource；
Accordingly, first sending module 62, specifically for current by determining with the network-side communication
Calling communication resource reservation success；In one embodiment, first sending module 62 passes through space interface signaling stream
Journey determines whether current calling communication resource is reserved successfully.
In one embodiment, the SDP answer carry caller resource status parameter；The caller resource shape
State parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations；
The SDP answer carry caller resource status parameter；The caller resource status parameter is used to indicate
The current state of calling communication resource；
The SDP answer are indicated by the way that the state of the caller resource status parameter is set to into sendrecv
Calling communication resource status are first state；So that called UE parses the 3rd information, the master is obtained
The state for being resource status parameter is sendrecv, determines that calling communication resource is pre- according to the sendrecv
Retained work(, the called UE carries out ringing operations.
In one embodiment, first sending module 62, is additionally operable to determine current calling communication resource status
For the second state when, the 5th information for carrying SDP answer is sent to network side, so that network side is according to institute
State the 5th information and generate the 6th information of carrying SDP answer, and send the 6th information to called UE；
Here, the calling communication resource of calling UE is not reserved successfully described in second state representation；
The SDP answer carry resource status parameter none, to indicate the not pre- profit retention of calling communication resource
Work(；Thus, called UE knows that calling communication resource is not reserved successfully according to resource status parameter none,
The UPDATE message confirmed for resource of calling UE transmission need to be continued waiting for.
Example IV
Fig. 7 show the communication resource of the embodiment of the present invention two and confirms device composition structural representation；Described device
Positioned at network side；As shown in fig. 7, the embodiment of the present invention communication resource confirms that device composition includes：Second connects
Receive the sending module 72 of module 71 and second；Wherein,
Second sending module 72, for sending the first information to calling UE；The first information is carried
SDP offer；
Second receiver module 71, for receiving the calling UE it is determined that calling communication resource status are
Second information of the carrying SDP answer sent during first state, generates according to second information and carries
3rd information of SDP answer, and the 3rd information is sent to called UE；The SDP answer are used
Ringing operations are directly carried out in the instruction called UE.
In embodiments of the present invention, the first information is UPDATE request messages, accordingly, described the
Two information are UPDATE response messages, and the 3rd information is PRACK message.
In one embodiment, second receiver module 71, it is additionally operable to receive that the called UE sends the
Four information, and generate the first information according to the 4th information；4th information carries the SDP
offer；
Here, the 4th information is the call request response message that the called UE sends, i.e. 183 sound
Answer message；The call request response message carries the SDP offer.
In one embodiment, the SDP answer carry caller resource status parameter；The caller resource shape
State parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations；
Specifically, the SDP answer are by the way that the state of the caller resource status parameter is set to
Sendrecv indicates the first state, i.e. calling communication resource is reserved successfully, so that called UE parsing
The PRACK message, the state for obtaining the caller resource status parameter is sendrecv, according to described
Sendrecv determines that calling communication resource has been reserved successfully, and the called UE carries out ringing operations；
The SDP answer indicate institute by the way that the state of the caller resource status parameter is set to into none
State the second state, i.e. calling communication resource not reserving successfully.
Embodiment five
Fig. 8 show the communication resource of the embodiment of the present invention three and confirms device composition structural representation；Described device
Positioned at called UE；As shown in figure 8, the embodiment of the present invention communication resource confirms that device composition includes：3rd connects
Receive module 81 and processing module 82；Wherein,
3rd receiver module 81, for receiving the 3rd letter of the carrying SDP answer of network side transmission
Breath；3rd information is network side foundation calling UE it is determined that calling communication resource status are first state
When second information of carrying SDP answer that sends generate；
The processing module 82, for directly carrying out ringing operations according to the 3rd information.
In embodiments of the present invention, the first information is UPDATE request messages, accordingly, described the
Two information are UPDATE response messages, and the 3rd information is PRACK message.
In an inventive embodiments, the SDP answer carry caller resource status parameter；The caller money
Source state parameter is used to indicate the current state of calling communication resource；
Accordingly, the processing module 82, specifically for according to the SDP answer in the 3rd information
The instruction calling communication resource status of carrying directly carry out ringing operations for the resource status parameter of first state.
In an inventive embodiments, indicated by the way that the state of the resource status parameter is set to into sendrecv
Calling communication resource status are first state；The first state is pre- for characterizing the calling communication resource
Retained work(.
Embodiment six
Fig. 9 show the embodiment of the present invention communication resource and confirms system composition structural representation；As shown in figure 9,
The embodiment of the present invention communication resource confirms that system composition includes：Calling UE 91, network side 92 and called UE 93；
Wherein,
The network side 92, for sending the first information to calling UE；The first information carries SDP
offer；
The calling UE 91, for receiving the first information, it is determined that current calling communication resource status are the
During one state, the second information for carrying SDP answer is sent to network side；The SDP answer are used for
Indicate that the called UE directly carries out ringing operations；
The network side 92, is additionally operable to be generated according to second information the 3rd letter for carrying SDP answer
Breath, and the 3rd information is sent to called UE；
The called UE 93, for directly entering line ringing behaviour according to the SDP answer in the 3rd information
Make.
In embodiments of the present invention, the first information is UPDATE request messages, accordingly, described the
Two information are UPDATE response messages, and the 3rd information is PRACK message.
In an inventive embodiments, the SDP answer carry caller resource status parameter；The caller money
Source state parameter is used to indicate the current state of calling communication resource；
The current state of the calling communication resource includes first state and the second state；Wherein, described first
State has been reserved successfully for characterizing calling communication resource；Second state is not pre- for characterizing calling communication resource
Retained work(；
Specifically, the SDP answer are by the way that the state of the caller resource status parameter is set to
Sendrecv indicates that the calling communication resource has been reserved successfully；By by the caller resource status parameter
State is set to none and indicates that the calling communication resource is not reserved successfully.
In one embodiment, called UE 93 parses the 3rd information, obtains SDP in the 3rd information
The sendrecv that answer is carried, it is known that the calling communication resource has been reserved successfully, can directly enter line ringing
Operation；Accordingly, if obtaining SDP answer carries none, it is known that the not pre- profit retention of the calling communication resource
Work(, need to continue waiting for the UPDATE message confirmed for resource of calling UE transmission.
In embodiments of the present invention, the first receiver module 61, the first sending module 62, the second receiver module
71st, the second sending module 72, the 3rd receiver module 81 and processing module 82 can be by terminals or server
Central processing unit (CPU, Central Processing Unit) or digital signal processor (DSP, Digital
Signal Processor) or field programmable gate array (FPGA, Field Programmable Gate
Array) or integrated circuit (ASIC, Application Specific Integrated Circuit) realize.
It need to be noted that be：The description of device and system is above is referred to, is similar with said method description
, describe with the beneficial effect of method, do not repeat.For in device of the present invention and system embodiment
The ins and outs not disclosed, refer to the description of the inventive method embodiment.
The above, only present pre-ferred embodiments are not intended to limit protection scope of the present invention.
Claims (21)
1. a kind of communication resource confirmation method, it is characterised in that methods described includes：
Calling subscriber equipment UE receives the first information that network side sends；The first information carries session and retouches
State agreement SDP offer；
It is determined that when current calling communication resource status are first state, sending the second letter for carrying SDP answer
Cease to network side, so that network side generates the 3rd information for carrying SDP answer according to second information,
And the 3rd information is sent to called UE；The SDP answer are used to indicate that the called UE is direct
Carry out ringing operations.
2. method according to claim 1, it is characterised in that the first state is used to characterize the master
The communication resource is made to have reserved successfully；
Accordingly, it is described to determine that current calling communication resource status include for first state：
The calling UE with the network-side communication by determining current calling communication resource reservation success.
3. method according to claim 1 or claim 2, it is characterised in that the SDP answer carry master
It is resource status parameter；The caller resource status parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations.
4. method according to claim 3, it is characterised in that by by the shape of the resource status parameter
State is set to sendrecv and indicates that calling communication resource status are first state.
5. a kind of communication resource confirmation method, it is characterised in that methods described includes：
Network side sends the first information to calling UE；The first information carries SDP offer；
Receive calling UE carrying SDP for sending when it is determined that calling communication resource status are first state
Second information of answer, the 3rd information for carrying SDP answer is generated according to second information, concurrently
The 3rd information is sent to called UE；The SDP answer are used to indicate that the called UE is directly carried out
Ringing operations.
6. method according to claim 5, it is characterised in that the network side sends the first information to master
Before being UE, methods described also includes：
Network side receives the 4th information that the called UE sends, and generates according to the 4th information described
The first information；4th information carries the SDP offer.
7. according to the methods described of claim 5 or 6, it is characterised in that the SDP answer carry master
It is resource status parameter；The caller resource status parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations.
8. method according to claim 7, it is characterised in that by by the shape of the resource status parameter
State is set to sendrecv and indicates that calling communication resource status are first state；The first state is used to characterize
The calling communication resource has been reserved successfully.
9. a kind of communication resource confirmation method, it is characterised in that methods described includes：
Called UE receives the 3rd information of the carrying SDP answer that network side sends；3rd information is
Network side carrying SDP for sending when it is determined that calling communication resource status are first state according to calling UE
What second information of answer was generated；
Ringing operations are directly carried out according to the 3rd information.
10. method according to claim 9, it is characterised in that the SDP answer carry caller money
Source state parameter；The caller resource status parameter is used to indicate the current state of calling communication resource；
Accordingly, it is described directly to carry out ringing operations according to the 3rd information and include：
The instruction calling communication resource status that called UE is carried according to the SDP answer in the 3rd information
Resource status parameter for first state directly carries out ringing operations.
11. methods according to claim 10, it is characterised in that by by the resource status parameter
State is set to sendrecv and indicates that calling communication resource status are first state；The first state is used for table
Levy the calling communication resource to have reserved successfully.
A kind of 12. communication resources confirm device, it is characterised in that described device is located at calling UE, the dress
Put including：First receiver module and the first sending module；Wherein,
First receiver module, for receiving the first information of network side transmission；The first information is carried
SDP offer；
First sending module, for determine current calling communication resource status be first state when, send
Second information of SDP answer is carried to network side, so as to network side is generated according to second information carry
3rd information of SDP answer, and the 3rd information is sent to called UE；The SDP answer are used
Ringing operations are directly carried out in the instruction called UE.
13. according to claim 12 described device, it is characterised in that the first state is described for characterizing
Calling communication resource has been reserved successfully；
Accordingly, first sending module, specifically for current main by determining with the network-side communication
Cry communication resource reservation success.
14. according to the described device of claim 12 or 13, it is characterised in that the SDP answer are carried
Caller resource status parameter；The caller resource status parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations.
A kind of 15. communication resources confirm device, it is characterised in that described device is located at network side, the dress
Put including：Second receiver module and the second sending module；Wherein,
Second sending module, for sending the first information to calling UE；The first information carries SDP
offer；
Second receiver module, for receiving the calling UE it is determined that calling communication resource status are the
Second information of the carrying SDP answer sent during one state, generates according to second information and carries SDP
3rd information of answer, and the 3rd information is sent to called UE；The SDP answer are used to refer to
Show that the called UE directly carries out ringing operations.
16. according to claim 15 described device, it is characterised in that second receiver module, is additionally operable to
The 4th information that the called UE sends is received, and the first information is generated according to the 4th information；
4th information carries the SDP offer.
17. according to the described device of claim 15 or 16, it is characterised in that the SDP answer are carried
Caller resource status parameter；The caller resource status parameter is used to indicate the current state of calling communication resource；
Accordingly, the SDP answer are by carrying the money for indicating calling communication resource status for first state
Source state parameter indicates that the called UE directly carries out ringing operations.
A kind of 18. communication resources confirm device, it is characterised in that described device is located at called UE, the dress
Put including：3rd receiver module and processing module；Wherein,
3rd receiver module, for receiving the 3rd information of the carrying SDP answer of network side transmission；
3rd information is that network side is sent out according to calling UE when it is determined that calling communication resource status are first state
What second information of the carrying SDP answer for sending was generated；
The processing module, for directly carrying out ringing operations according to the 3rd information.
19. according to claim 18 described device, it is characterised in that the SDP answer carry caller
Resource status parameter；The caller resource status parameter is used to indicate the current state of calling communication resource；
Accordingly, the processing module, specifically for carrying according to the SDP answer in the 3rd information
Indicate that calling communication resource status directly carry out ringing operations for the resource status parameter of first state.
20. according to claim 19 described device, it is characterised in that by by the resource status parameter
State is set to sendrecv and indicates that calling communication resource status are first state；The first state is used for table
Levy the calling communication resource to have reserved successfully.
A kind of 21. communication resources confirm system, it is characterised in that the system includes：Calling UE, network
Side and called UE；Wherein,
The network side, for sending the first information to calling UE；The first information carries SDP offer；
The calling UE, for receiving the first information, it is determined that current calling communication resource status are first
During state, the second information for carrying SDP answer is sent to network side；The SDP answer are used to refer to
Show that the called UE directly carries out ringing operations；
The network side, is additionally operable to be generated according to second information the 3rd information for carrying SDP answer,
And the 3rd information is sent to called UE；
The called UE, for directly carrying out ringing operations according to the SDP answer in the 3rd information.
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